#include <stdio.h>

void swap(int *a,int* b)
{
	int tmp = *a;
	*a = *b;
    *b = tmp;
	 
}


int main()
{
	int a,b;
   scanf("%d %d",&a,&b);
    swap(&a,&b);
    
    printf("%d %d",a,b);
   
	
	
	return 0;
	
	
	} 
